Ken and Eliza had hoped that their wedding preparations would run smoothly, but those plans come to an abrupt halt when Vega crashes their wedding shower with one thing on his mind: revenge. However, this fight is one Ken fortunately won't need to fight alone. Meanwhile in Brazil, Cammy and Chun-Li try to get to the bottom of Shadaloo's secret weapons programs, but discover something even more disturbing: Bison has returned!